NMR Signatures of the Active Sites in Sn-beta Zeolite

Dynamic nuclear polarization surface enhanced NMR (DNP-SENS), Mossbauer spectroscopy, and computational chemistry were combined to obtain structural information on the active-site speciation in Sn-beta zeolite. This approach unambiguously shows the presence of framework Sn-IV-active sites in an octahedral environment, which probably correspond to so-called open and closed sites, respectively (namely, tin bound to three or four siloxy groups of the zeolite framework).


Published in:
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 53, 38, 10179-10183
Year:
2014
ISSN:
1433-7851
Keywords:
Laboratories:




 Record created 2015-01-08, last modified 2018-09-13

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